如有需要可选修额外的课程。Additional courses may be taken if desired.这门课程包括十个必修单元和五个选修单元。The course consists of ten core modules and five optional modules.某些课程是必修的，其他是选修的。Certain courses are compulsory, others are optional....
...rapidly diminishing suppliers of furs and pelts.数量锐减的毛皮供应商Clubbing baby seals to death for their pelts is wrong.为了获得海豹皮而用棍棒打死幼海豹是不道德的。...a bed covered with beaver pelts.铺着海狸毛皮的床Their sleek , unmarred pelts are prime q...
They had to obey the decree that beards be shaved off.他们只得服从剃光胡须的法令.Here are aged Moors with flowing white beards, and long white robes with vast cowls.这儿有批上年纪的摩尔人,白须飘拂,身穿白长袍,头顶大风兜....wild, savage-looking fellows, with l...